Which parts of a compound microscope magnify objects? a convex and a concave lens two convex lenses two concave lenses one concave and two convex lenses?

I believe the answer is two convex lenses. A compound microscope has two systems of lenses for greater magnification, the ocular, or eyepiece lens that one looks into and the objective lens, or the lens closest to the object. Both the ocular lens and the objective lens are convex lens.